| 固化风沙土无侧限抗压强度试验研究 |
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| 引用本文： | 苏跃宏,宋幸芳.固化风沙土无侧限抗压强度试验研究[J].内蒙古农业大学学报(自然科学版),2011,32(3):215-218. |
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| 作者姓名： | 苏跃宏 宋幸芳 |
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| 作者单位： | 内蒙古工业大学土木工程学院,呼和浩特,010051 |
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| 摘 要： | 在应用固化剂稳定风沙土做底基层试验研究中,从提高无侧限抗压强度方面对固化风沙土强度进行试验研究。击实试验结果表明:掺8%固化剂风沙土最大干密度要比纯风沙土最大干密度增大很多而最优含水率略有下降。无侧限抗压强度试验结果表明:风沙土无侧限抗压强度随固化剂掺量增加强度提高不显著,那么在固化风沙土中掺入20%-50%砂砾后,固化风沙土和砂砾混合料无侧限抗压强度提高很显著。在固化剂掺量小于8%、砂砾掺量50%的固化混合料试验中,砂砾和风沙土混合料强度随固化剂掺量的增加成线性增加。根据实际工程情况,调整砂砾和固化剂二者掺量关系,固化砂砾和风沙土混合材料既能满足高等级公路底基层、基层强度要求又能达到降低成本、改善材料性能的目的。
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| 关 键 词： | 风沙土 固化剂 无侧限抗压强度 固化机制 |
EXPERIMENTAL STUDIES ON SOLIDIFIED SANDY SOIL UNCONFINED COMPRESSIVE STRENGTH |
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| SU Yue-hong,SONG Xing-fang.EXPERIMENTAL STUDIES ON SOLIDIFIED SANDY SOIL UNCONFINED COMPRESSIVE STRENGTH[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2011,32(3):215-218. |
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| Authors: | SU Yue-hong SONG Xing-fang |
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| Institution: | SU Yue-hong1,SONG Xing-fang1(College of Civil Engineering,Inner Mongolia University of Technology,Huhhot 010051,China) |
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| Abstract: | In the experiment of solidified is used to stable sandy soil to be subbase,the strength of solidified sandy soil is studied in improving the unconfined compressive strength.Compaction test results show that the maximum dry density of solidified sand soil mixed 8% increases much more than pure sandy soil,and optimum moisture content declined slightly.The unconfined compressive strength test results show that the unconfined compressive strength of sandy soil increase not significant as the solidified content ... |
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| Keywords: | sandy soil curing agent unconfined compressive strength solidified mechanism |
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